at least DEX 20 point and at least Bash 1 Point
↓↘→ B and then ↓↘→ B
Use Bash after Bash (ground only)
Combo Bash into Bash. You can keep chaining them as long as they hit. You still use the 30SP for each consecutive Bash.
You can also chain this from Second Bash (10SP) if you have Fatal Blow, allowing a chain for 20SP per hit of Bash -> Second Bash -> Bash -> Second Bash...
does a downwards slice and second hit is a slash upwards.
On the ground it does an horizontal slash with good range, and second Bash is a second slash with even better horizontal range.